langenfield, he's not definitive in his account, he's receiving a patient, getting hand-off, can't sayinitively the thing that happened, but it was striking to me them setting up testimony, they didn't tell you there was stress, other stuff going on. what was that line of questioning trying to do? >> if the officers were truly concerned or believed at moment as derek chauvin is claiming now that mr. floyd was in drug induced delirium, that would have been relevant to pass on to the paramedics who would have passed on to the doctor. on his own the er doctor came to the conclusion that cause of death was oxygen deprivation, and none of the four officers offered medical aid, stopped off-duty firefighter from rendering aid and ignored the crowd pleading them to render aid, relevant in the case. >> there's the proactive actions of kneeing, then there's the prevention of cpr. what the doctor had to say about the causal structure of floyd's death. >> it's well known any amount of time a patient spends in cardiac arrest without immediate cpr markedly decreases the chance of a good outcome. app

langenfield told you that. dr. baker ruled it a homicide. told you the cause and manner of death, the restraint and sub dual of law enforcement. dr. tobin, he told you how it happen, the asphyxia. the other doctors dr. smock, dr. rich, they told you how it didn't happen. it was a cardiac event. wasn't a heart attack. wasn't a drug overdose. dr. tobin explained it wasn't carbon monoxide. you know how george floyd died. specifically dr. tobin provided extensive detail and was very clear that george floyd died as a low level of oxygen, this low level of oxygen called brain injury and a p.e.a. arrythmia. that's not a heart event. his heart disease didn't cause him to die. it was the low level of oxygen. it was the asphyxia that caused him to die. we know that happened. we know it happened because they observed during the restraint at 20:24:21, they observed an anoxic seizure. they told you that. after mr. floyd experienced the seizure, he passed out. his pulse stopped. his heart stopped. that cardio pulmonary arrest was the result of the police

langenfield told you that. the cause and manner of death the restraint by law enforcement killed him. he told you that. dr. tobin, remember dr. tobin, he told you specifically how it happened. he walked you through the asphyxia. he told you how it happened. and the other doctors who testified, dr. smock, dr. rich, they told you how it didn't happen. it wasn't a sudden cardiac event. it wasn't a heart attack or drug overdose. it wasn't any of those things. dr. tobin came back and explained it wasn't carbon monoxide. no. you know how george floyd died. and you heard this. but specifically dr. tobin provided fairly extensive detail and was very clear that george floyd died as a result of a low level of oxygen. low level of oxygen caused a brain injury and an arrhythmia that caused his heart to stop. it is not a cardiac event. the heart disease didn't cause him to die. it was the low level of oxygen. it was the asphyxia that caused him to die. and we know that happened. we know that happened because they observed d

bradford langenfield, we're going to come back to that. this is the chief reacting to the defense trying to make this look like deescalation, what chauvin did. take a look. >> sometimes deescalation includes the use of force. right? use of force can be a deescalation tactic. >> i was thinking of your example of displaying your weapon. i don't have a lot of knowledge in terms of physical force being used to deescalate a situation, but threatening use of force or threatening verbally, i'm more familiar with that. >> chief godbee, how long have you been a cop? number of years of experience? >> started -- over 35 years in law enforcement, and i must say, if i could, asphyxia, i'm sure butler can attest, absent one individual on your back and three on your throat, we've been sensitive to that, laying on stomach, he was still subject to die in that circumstance. what chauvin did exacerbated it. i'm proud of the chief for not buying into the nonsensical arguments of the defense. >> you anticipated my question and answered it. eric garner case pla

langenfield's testimony so far. >> we heard right before the morning break, andrea, the doctor said that he suspected the cause of death after working on george floyd for nearly 30 minutes and he suspected the cause of death to be asphyxia. that's a term that you don't see in the medical examiner's report and this is the physician in the hospital trying to resuscitate george floyd. that was a key piece of testimony from the doctor. based on the notes we are getting from inside the courtroom, two reporters watching this, that was the moment when you saw the jury, almost every member of the jury start taking notes when the doctor made that assessment and testified to that effect. we also heard in this cross-examination eric nelson make the -- it looks like court is back in session so i'll stop now. >> the judge is now looking at the clock and about to refer back to the witness the witness is dr. langenfeld and the defense attorney crossing is eric nelson. depends where you're practicing. >> in the state of minnesota? >> yes. >> a paramedic can't declare a person dead. >> no. not without co

langenfield told you that mr. floyd died and ruled this a homicide. he told you that the cause and manner of death, the restrained by law enforcement, what they did killed him. we told you that. doctor tobin, remember he told you specifically how it happened. he walked you through that, the asphyxia. he told you how it happened. and other doctors that testified, doctor smock, rich, they told you how it didn't happen. it wasn't a sudden cardiac event or heart attack or drug overdose. it wasn't any of those things. doctor tobin came back and explained it wasn't carbon monoxide, no. you know how george floyd died, and you heard this. specifically, doctor tobin provided fairly extensive detail and was very clear george floyd died as a result of a low level of oxygen. a low level of oxygen caused the brain injury and an arrhythmia caused his heart to stop. that's not a cardiac event, it's not that his heart disease, that didn't cause him to die. it was the low level of oxygen. it was the asphyxia that caused him to die. we know that happened because they o

langenfield told you that, mr. floyd died, dr.aker ruled this a homicide and told you the cause and manner of death, the unlawful, the restraint and subdual by law enforcement, what they did killed him. told you that dr. tobin, he told you specifically how it happened. he walked you through that the asphyxia, he told you how it happened. and the other doctors who testified, dr. smock, dr. rich, dr. eisenschmidt, they told you how it didn't happen. it wasn't a sudden cardiac event, hfs a heart attack, it wasn't a drug overdose. it wasn't any of those things. dr. tobin came back and explained it wasn't carbon monoxide. no, so you know how george floyd died. and you heard this, but specifically, you know, d dr. tobin provided fairly extensive detail and was very clear that george floyd died as a result of a low level of oxygen, low level of oxygen caused a brain injury, and a pea arrhythmia which caused his heart to stop. that's not a cardiac event. it's not that his heart disease, right, that didn't cause him to die. it was the low